fixed extension list file location.

apps/advanced/backend/config/main.php

@@ -15,7 +15,7 @@ return [
 	'preload' => ['log'],
 	'controllerNamespace' => 'backend\controllers',
 	'modules' => [],
-	'extensions' => require(__DIR__ . '/../../vendor/yii-extensions.php'),
+	'extensions' => require(__DIR__ . '/../../vendor/yiisoft/extensions.php'),
 	'components' => [
 		'request' => [
 			'enableCsrfValidation' => true,

apps/advanced/console/config/main.php

@@ -15,7 +15,7 @@ return [
 	'controllerNamespace' => 'console\controllers',
 	'modules' => [
 	],
-	'extensions' => require(__DIR__ . '/../../vendor/yii-extensions.php'),
+	'extensions' => require(__DIR__ . '/../../vendor/yiisoft/extensions.php'),
 	'components' => [
 		'db' => $params['components.db'],
 		'cache' => $params['components.cache'],

apps/advanced/frontend/config/main.php

@@ -16,7 +16,7 @@ return [
 	'modules' => [
 		'gii' => 'yii\gii\Module'
 	],
-	'extensions' => require(__DIR__ . '/../../vendor/yii-extensions.php'),
+	'extensions' => require(__DIR__ . '/../../vendor/yiisoft/extensions.php'),
 	'components' => [
 		'request' => [
 			'enableCsrfValidation' => true,

apps/basic/config/console.php

@@ -6,7 +6,7 @@ return [
 	'preload' => ['log'],
 	'controllerPath' => dirname(__DIR__) . '/commands',
 	'controllerNamespace' => 'app\commands',
-	'extensions' => require(__DIR__ . '/../vendor/yii-extensions.php'),
+	'extensions' => require(__DIR__ . '/../vendor/yiisoft/extensions.php'),
 	'components' => [
 		'cache' => [
 			'class' => 'yii\caching\FileCache',

apps/basic/config/web.php

@@ -3,7 +3,7 @@ $params = require(__DIR__ . '/params.php');
 $config = [
 	'id' => 'bootstrap',
 	'basePath' => dirname(__DIR__),
-	'extensions' => require(__DIR__ . '/../vendor/yii-extensions.php'),
+	'extensions' => require(__DIR__ . '/../vendor/yiisoft/extensions.php'),
 	'components' => [
 		'request' => [
 			'enableCsrfValidation' => true,

extensions/composer/Plugin.php

@@ -26,8 +26,9 @@ class Plugin implements PluginInterface
 	{
 		$installer = new Installer($io, $composer);
 		$composer->getInstallationManager()->addInstaller($installer);
-		$file = rtrim($composer->getConfig()->get('vendor-dir'), '/') . '/yii-extensions.php';
+		$file = rtrim($composer->getConfig()->get('vendor-dir'), '/') . '/yiisoft/extensions.php';
 		if (!is_file($file)) {
+			@mkdir(dirname($file));
 			file_put_contents($file, "<?php\nreturn [];\n");
 		}
 	}